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Antioxidant 1076 is odorless, tasteless and less toxicity and stable to light so that it can widely used in polymer materials, such as polypropylene polyethylene, polystyrene, polyamide, polyoxymethylene, ABS, synthetic rubber and so on. It is an effective antioxidant in oil and paint, too. Antioxidant 1076 is a nonpolluting nontoxic Antioxidant with good heat-resisting and water-extracting performance. widely applied to polyolefine, polyamnamee, polyester, polyvinyl chlornamee, ABS resin and petroleum product, often used with DLTP for promoting the antioxnameative effect.

2082-79-3

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  • Antioxidant 1076 Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate

    Cas No: 2082-79-3

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2082-79-3 Usage

Characterization

Antioxidant 1076, a sterically hindered phenolic antioxidant, is highly efficient, non discoloring stabilizer for organic substrates such as plastics, synthetic fibers, elastomers, adhesives, waxes, oils and fats. It protects these substrates against thermo-oxidative degradation. IRGANOX 1076 is odorless, stable to light and has excellent color retention. It has good compatibility with most substrates, low volatility and high resistance to extraction.

Applications

Antioxidant 1076 can be applied in polyolefins such as polyethylene, polypropylene, polybutene-1 as well as in other polymers such as engineering plastics, styrene homo- and copolymers, polyurethanes, elastomers, adhesives, and other organic substrates.

Features/benefits

Antioxidant 1076 can be used in combination with other additives such as costabilizers (e.g. thioesters, phosphites, phosphonites), light stabilizers, and other functional stabilizers.

Physical Properties

▼▲ Solubility (20 °C) % w/w Water < 0.01 Acetone 19 Benzene 57 Chloroform 57 Cyclohexane 40 Ethanol 1.5 Ethylacetate 38 n-Hexane 32 Methanol 0.6 Toluene 50

Handling & Safety

In accordance with good industrial practice, handle with care and prevent contamination of the environment. Avoid dust formation and ignition sources.

Chemical Properties

white crystalline powder

Uses

Different sources of media describe the Uses of 2082-79-3 differently. You can refer to the following data:
1. 1076 is a nonpolluting nontoxic antioxidant with good heat-resisting and water-extracting performance. It can be applied in polyolefins, such as polyeth-ylene, polypropylene, polybutene-1 and other polymers such as engineering plastics ,styrenes, polyurethanes, saturated and unsaturated elastomers, styrenics, rubber modified styrenics, segmented block copolymers, and PVC. Also often used with DLTDP for promoting the antioxidative effect.
2. Octadecyl 3-?(3,?5-?Di-?tert-?butyl-?4-?hydroxyphenyl)?propionate is a 4 chain-breaking antioxidant. A study shows that Octadecyl 3-?(3,?5-?Di-?tert-?butyl-?4-?hydroxyphenyl)?propionate can protect the oxidation of soybean phosphatidylcholine liposomes in water dispersion, but cannot protect the oxidation of dimyristoyl phosphatidylcholine liposomes.

Application

Antioxidant 1076 finds application in plastics, rubber, latex, varnishes, adhesives, TPR's and Hot Melts. In plastics, antioxidant 1076 provides excellent antioxidant performance in Polyethylene, Polystyrene, Polyacetal, PVC, AS resin, Methacrylic resin, Polycarbonate, Polyester, and Polymethyl- pentene as well as many others. In rubbers, Antioxidant 1076 can be used in SBR, EPR, EPDM, Polybutadiene, Neoprene, Nitrile, Polyisoprene, and many other synthetic rubbers. Typical dosage is 0.02% - 0.5% by weight.

General Description

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate is a propionate based phenolic antioxidant that can be used as a polymeric stabilizer by butylphenol functionalities.

Safety

FDA approved for use in indirect food contact applications. This product is of low toxicity to aquatic organisms.

Check Digit Verification of cas no

The CAS Registry Mumber 2082-79-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,8 and 2 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 2082-79:
(6*2)+(5*0)+(4*8)+(3*2)+(2*7)+(1*9)=73
73 % 10 = 3
So 2082-79-3 is a valid CAS Registry Number.
InChI:InChI=1/C35H62O3/c1-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-26-29-38-32(37)35(33(2,3)4,34(5,6)7)31(36)30-27-24-23-25-28-30/h23-25,27-28,31,36H,8-22,26,29H2,1-7H3

2082-79-3 Well-known Company Product Price

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  • (Code)Product description
  • CAS number
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  • Sigma-Aldrich

  • (P2155011)  Plasticadditive11  European Pharmacopoeia (EP) Reference Standard

  • 2082-79-3

  • P2155011

  • 1,880.19CNY

  • Detail
  • USP

  • (1544950)  Plasticadditive4  United States Pharmacopeia (USP) Reference Standard

  • 2082-79-3

  • 1544950-200MG

  • 4,647.24CNY

  • Detail
  • Aldrich

  • (367079)  Octadecyl3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate  99%

  • 2082-79-3

  • 367079-100G

  • 775.71CNY

  • Detail

2082-79-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name n-octadecyl (3-[3,5-di-tert-butyl-4-hydroxyphenyl]propionate)

1.2 Other means of identification

Product number -
Other names ANITOXIDANT 1076

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Corrosion inhibitors and anti-scaling agents,Oxidizing/reducing agents,Process regulators,Processing aids, not otherwise listed,Processing aids, specific to petroleum production,Viscosity adjustors
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:2082-79-3 SDS

2082-79-3Synthetic route

1-octadecanol
112-92-5

1-octadecanol

methyl 3-(4-hydroxy-3,5-di-tert-butyl)phenylpropanoate
6386-38-5

methyl 3-(4-hydroxy-3,5-di-tert-butyl)phenylpropanoate

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
2082-79-3

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate

Conditions
ConditionsYield
Stage #1: 1-octadecanol; methyl 3-(4-hydroxy-3,5-di-tert-butyl)phenylpropanoate In xylene for 0.5h; Heating;
Stage #2: With TiO(acac)2 In xylene for 11h; Heating;
100%
With sodium montmorillonite In methanol at 110 - 120℃; under 15001.5 - 22502.3 Torr; for 7h; Reagent/catalyst; Inert atmosphere;99.1%
Stage #1: methyl 3-(4-hydroxy-3,5-di-tert-butyl)phenylpropanoate With tetramethoxytitanium; tetrabutoxytitanium In ethylene glycol; toluene for 1.33333h; Inert atmosphere; Cooling with ice;
Stage #2: 1-octadecanol With zirconium (IV) butoxide at 80℃; for 3h; Reagent/catalyst; Temperature; Inert atmosphere; Cooling with ice;
99.6%
1-octadecanol
112-92-5

1-octadecanol

4-hydroxy-3,5-di-tert-butylphenylpropionic acid
20170-32-5

4-hydroxy-3,5-di-tert-butylphenylpropionic acid

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
2082-79-3

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate

Conditions
ConditionsYield
Stage #1: 1-octadecanol; 4-hydroxy-3,5-di-tert-butylphenylpropionic acid With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 0.333333h;
Stage #2: With dmap In dichloromethane at 20℃; for 6h;
97%
1-octadecanol
112-92-5

1-octadecanol

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
2082-79-3

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate

Conditions
ConditionsYield
87%
aqueous isopropyl alcohol

aqueous isopropyl alcohol

1-octadecanol
112-92-5

1-octadecanol

n-octadecylβ-(3,5-di-t-butyl-4-hydroxyphenyl)propionate

n-octadecylβ-(3,5-di-t-butyl-4-hydroxyphenyl)propionate

2,6-di-tert-butylphenol
128-39-2

2,6-di-tert-butylphenol

acrylic acid methyl ester
292638-85-8

acrylic acid methyl ester

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
2082-79-3

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate

Conditions
ConditionsYield
With sodium methylate In acetic acid80%
n-octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionate radical
57559-04-3

n-octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionate radical

A

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
2082-79-3

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate

B

3-(3,5-Di-tert-butyl-4-oxo-cyclohexa-2,5-dienylidene)-propionic acid octadecyl ester
65075-11-8

3-(3,5-Di-tert-butyl-4-oxo-cyclohexa-2,5-dienylidene)-propionic acid octadecyl ester

Conditions
ConditionsYield
Rate constant; Thermodynamic data; rate constant of the disproportionation;
1-octadecanol
112-92-5

1-octadecanol

monobutyltin oxide
51590-67-1

monobutyltin oxide

methyl 3-(4-hydroxy-3,5-di-tert-butyl)phenylpropanoate
6386-38-5

methyl 3-(4-hydroxy-3,5-di-tert-butyl)phenylpropanoate

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
2082-79-3

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate

1-octadecanol
112-92-5

1-octadecanol

3,5-di-tert-butyl-4-hydroxyphenylpropionic acid
13917-37-8

3,5-di-tert-butyl-4-hydroxyphenylpropionic acid

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
2082-79-3

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate

Conditions
ConditionsYield
In toluene
1-octadecanol
112-92-5

1-octadecanol

di(n-butyl)tin oxide
818-08-6

di(n-butyl)tin oxide

methyl 3-(4-hydroxy-3,5-di-tert-butyl)phenylpropanoate
6386-38-5

methyl 3-(4-hydroxy-3,5-di-tert-butyl)phenylpropanoate

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
2082-79-3

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate

Conditions
ConditionsYield
With nitrogen
montmorillonit-Erde

montmorillonit-Erde

1-octadecanol
112-92-5

1-octadecanol

di(n-butyl)tin oxide
818-08-6

di(n-butyl)tin oxide

methyl 3-(4-hydroxy-3,5-di-tert-butyl)phenylpropanoate
6386-38-5

methyl 3-(4-hydroxy-3,5-di-tert-butyl)phenylpropanoate

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
2082-79-3

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate

Conditions
ConditionsYield
With hydroquinone In water; toluene
Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
2082-79-3

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate

dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

bis<2,6-di-t-butyl-4-(2-(noctadecyloxycarbonyl)ethyl)phenoxy>dimethylsilane

bis<2,6-di-t-butyl-4-(2-(noctadecyloxycarbonyl)ethyl)phenoxy>dimethylsilane

Conditions
ConditionsYield
With 15-crown-5; sodium hydride In various solvent(s) at 70℃; for 7h;34%
Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
2082-79-3

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate

A

n-octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionate radical
57559-04-3

n-octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionate radical

B

C35H62O3(1+)

C35H62O3(1+)

Conditions
ConditionsYield
With n-Butyl chloride Kinetics; Further Variations:; Solvents; Radiolysis;
With n-Butyl chloride Kinetics; Radiolysis;

2082-79-3Relevant articles and documents

Synthesis of Fatty Alcohol based Sterically Hindered Esters as Potential Antioxidants for Bioadditives

Madhu, Devarapaga,Padmaja, Korlipara V.,Venkateshwarlu, Kontham

, p. 1309 - 1316 (2020/12/02)

Abstract: Four hindered phenolic esters were prepared by esterification between 3-(3,5-Di-tert-butyl-hydroxyphenyl)propionic acid and fatty alcohols. The synthesized esters were characterised by NMR, IR and ESI-MS and analysed for their antioxidant proper

Synthesis process of antioxidant 1076

-

Paragraph 0012; 0050-0120; 0122, (2018/09/08)

The invention provides a method of organically synthesizing an antioxidant 1076, i.e. octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propionate. The preparation method comprises the following steps: bytaking a mixed solution of ethylene glycol and methylbenzene as a solvent, and by taking methyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propionate and stearyl alcohol as reactants, adding a catalyst andreacting to obtain the octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propionate. According to the preparation method, the mixed solution is used as the solvent, and the catalyst is added in batches ina reaction process, so that the organic synthesis method provided by the invention has the advantages that in the reaction of preparing the octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propionate, the use amount of the catalyst is less, the reaction temperature is low, the obtained product is high in purity, and the yield is still up to 92 percent or above in pilot scale test.

Method for preparing n-Octadecyl-beta-(4-hydroxy-3,5-di-tert-butyl-phenyl)-propionate at high pressure

-

Paragraph 0017-0028, (2017/02/17)

The invention relates to a method for preparing n-Octadecyl-beta-(4-hydroxy-3,5-di-tert-butyl-phenyl)-propionate at high pressure. The adopted technical scheme is that the method comprises the following steps of taking beta-(3,5-di-tert-butyl-4-hydroxyphenyl) methyl propionate, octadecanol, a catalyst and solvent, and enabling the substances to react at the pressure of 2 to 3MPa and the temperature of 110 to 120DEG C for 6 to 7 hours, thus obtaining the beta-(4-hydroxy-3,5-di-tert-butyl-phenyl)-propionate. The method disclosed by the invention is simple and is low in energy consumption, and wastes are utilized; the purity of the obtained n-Octadecyl-beta-(4-hydroxy-3,5-di-tert -butyl-phenyl)-propionate is high.

METHODS AND COMPOSITIONS FOR INHIBITING VINYL AROMATIC MONOMER POLYMERIZATION

-

, (2013/03/26)

Methods and compositions are provided for inhibiting the polymerization of a vinyl aromatic monomer, such as styrene monomer, during elevated temperature processing thereof or during storage or shipment of polymer containing product. The compositions comprise a combination of a quinone methide derivative A) and a phenol compound B). The methods comprise adding from about 1-10,000 ppm of the combination to the monomer containing medium, per one million parts of the monomer.

Method for making hindered phenolic antioxidant

-

Page/Page column 3-4, (2010/08/22)

A method for making a hindered phenolic antioxidant based on Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate uses a methanol solution containing alkali metal methoxide as a catalyst solution, wherein the catalyst solution is filtered with a filter device with a filter pore diameter of less than 50 μm to remove insoluble matters therefrom before used in a transesterification process where methyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate and 1-Octadecanol are taken as reactants to obtain a crude product of Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate having high conversion rate and low color, and the crude product further undergoes a purification process for crystallization, filtering and drying to obtain a product of Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate having high purity and low color.

Nucleophilic acyl substitutions of esters with protic nucleophiles mediated by amphoteric, oxotitanium, and vanadyl species

Chen, Chien-Tien,Kuo, Jen-Huang,Ku, Cheng-Hsiu,Weng, Shiue-Shien,Liu, Cheng-Yuan

, p. 1328 - 1339 (2007/10/03)

(Chemical Equation Presented) A diverse array of oxometallic species were examined as catalysts in nucleophilic acyl substitution (NAS) reactions of methyl (or ethyl) esters with protic nucleophiles. Among them, oxotitanium acetylacetonate (TiO(acac)2) and vanadyl chloride (VOCl 2-(THF)x) served as the most efficient and water-tolerant catalysts. Transesterifications of methyl and/or ethyl esters with functionalized (including acid- or base-sensitive) 1° and 2° alcohols can be carried out chemoselectively in refluxed toluene or xylene in a 1:1 substrate stoichiometry using 1 mol % catalyst loading. The resultant products were furnished in 85-100% yields by simple aqueous workup to remove water-soluble catalysts. The new NAS protocol is also amenable to amines and thiols in 74-91% yields, albeit with higher loading (2.5 equiv) of protic nucleophiles. Representative examples of commercial interests such as Padimate O and antioxidant additives for plastics were also examined to demonstrate their practical applications. A 1:1 adduct between TiO(acac)2 and a given 1-octadecanol was identified as (C18H37O) 2Ti(acac)2 and was responsible for its subsequent NAS of methyl esters.

Mixture of substances containing compounds with vinyl groups and stabilizers

-

, (2008/06/13)

A mixture contains one or more vinyl-containing compounds as component (A) and, as a further component, a stabilizer (B) which contains one or more readily volatile nitroxyl compounds as component (b1), one or more sparingly volatile nitroxyl compounds as component (b2), if required one or more aromatic nitro compounds as component (b3) and, if required, one or more iron compounds as component (b4).Stabilizers (B) contain the components (b1) and (b2), (b1) and (b2) and (b3), (b1) and (b2) and (b4), and (b1), (b2), (b3) and (b4), and the premature polymerization of vinyl-containing compounds during their purification or distillation is inhibited by a process in which a stabilizer (B) is added or the components of stabilizer (B) are added as individual substances or in at least two groups of the components.

Preparation of substituted hydroxyhydrocinnamate esters by continuous transesterification using reactive distillation

-

, (2008/06/13)

Substituted hydroxyhydrocinnamate esters of the formula (I) where R is alkyl, n is 0 to 2, m is 1 to 4 and A is alkyl, interrupted or uninterrupted alkylene, alkanetriyl or pentaerythrityl, are prepared by continuous transesterification of the corresponding lower alkyl mono-ester with an alkanol or polyol of the formula A-(OH)m. This novel process comprises continuously introducing into and reacting the reactants in a heated distillation column reactor having a reaction zone which contains a solid, heterogeneous transesterification catalyst to form the compound of formula (I) and the corresponding lower alkanol; separating the products so formed based on their difference in volatility; and continuously removing said products from the distillation column at a steady rate, thereby preventing the reaction mixture from reaching chemical equilibrium. The continuous reaction results in improved product throughput and product quality and has a lower residence time, as compared to known batch-type processes.

Process for the preparation of substituted hydroxyhydrocinnamate esters

-

, (2008/06/13)

The transesterification of substituted lower alkyl hydroxyhydrocinnamates with a higher alcohol or a polyol is greatly facilitated by the use of a trace amount of a tin catalyst. In many cases, the amount of the catalyst is so small that it is unnecessary to remove it from the final product by distillation of said product.

4-acylaminopiperidin-N-oxyle

-

, (2008/06/13)

4-Acylaminopiperidine N-oxides Ia where A1 is hydrogen or an organic radical and B1 is a radical IIa STR1 where R1 -R4 are each C1 -C4 -alkyl and R1 and R2, on the one hand, and R3 and R4, on the other hand, may furthermore be bonded to form a 5-membered or 6-membered ring, R5 is H or C1 14 C4 -alkyl and R6 is H or C1 -C18 -alkyl, are used for stabilizing organic materials against the harmful effect of free radicals, particularly in the distillation of monomers which undergo free radical polymerization, especially styrene.

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